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參數(shù)資料
| 型號： | VT73227-S1X |
| 廠商： | Vaishali Semiconductor |
| 英文描述： | VCXO (Voltage-Controlled Crystal Oscillator) 27 MHz 3.3V |
| 中文描述： | 壓控（電壓控制晶體振蕩器）27兆赫3.3 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大小： | 67K |
| 代理商： | VT73227-S1X |
2001-04-02
Vaishali Semiconductor 1300 White Oaks Road, Ste. 200 Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063
Page
1
MDST-0006-03
Applications
=
Set-top boxes
=
Telecom switching
=
=
Oscillator replacement
MPEG Video clock source
General Description
The Vaishali VT73227 is a single-chip, low-jitter Voltage-Controlled-Crystal-Oscillator. The device accepts
a 27 MHz, 20 pF (pull range of 200 ppm) crystal input, and produces a low jitter output at the same
frequency. A 0 to 3.0V control signal is used to fine tune the output clock frequency in the ±100ppm range.
Features
=
3.3V operating voltage
=
Uses inexpensive pullable crystal
=
12mA drive capability at TTL levels
=
On-chip oscillator with 200 ppm pull
range (±100 ppm)
8 pin SOIC package
=
Figure 1. Functional Block Diagram
VT73227
VCXO
(Voltage-Controlled Crystal Oscillator)
27 MHz 3.3V
CLK1
VDD2
X2
Load Cap Control
Output
Buffer
Load
Caps
VDD1
27 MHz
Pullable
Crystal
VIN
X1
GND1
GND2
Oscillator
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